Stop Copy

Stop Copy is a very early copy protection system that was generally used on videotapes from 1978 to 1983, though some companies continued to use the system until sometime in the late 1980s, a few years after the system's successor, the Analog Protection System was released. This copy protection system resulted in tapes from around this time sometimes developing vertical-roll issues when playing on modern videotape players and/or modern television sets.

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